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Bo1 Bourne Creek Eastern Bank Phys/Chem

Active Physico-Chemical 24-05-2016 - 24-06-2025

Bourne Creek

80 results found (Displaying 1 - 25)
Date Status Details
24 Jun 2025 Approved Notes:

High top pH may be due to residual algal bloom
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.8 8.9 11.30 11.00 7.26 72.3 18.44
0.9m 24.8 7.1 12.20 17.60 1.09 11.9 35.62
4 Jun 2025 Approved Notes:

Algal bloom not nearly as bad now but water still quite cloudy.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 54.9 8.0 10.50 21.60 6.65 67.7 34.35
0.5m 54.9 8.0 10.50 21.90 6.45 65.7 34.82
11 Feb 2025 Approved Notes:

Algal bloom would explain very high pH and turbidity readings. Turbidity >100NTU
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 100.0 9.2 20.60 18.90 6.81 84.7 30.31
0.5m 100.0 9.2 20.20 19.20 2.88 3.6 30.79
23 Jan 2025 Approved Notes:

Algae most likely the reason for elevated ph and turbidity levels
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 87.1 8.7 19.90 16.00 5.00 60.6 26.13
0.7m 87.1 8.7 19.40 16.70 2.72 32.8 27.17
13 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.6 8.0 20.10 12.80 10.19 121.4 21.31
0.5m 21.6 8.0 20.10 12.80 9.82 116.2 21.29
9 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 7.7 18.80 12.20 3.11 35.5 20.34
0.4m 12.5 7.4 18.90 12.30 3.07 35.4 20.42
2 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.1 7.6 25.20 11.90 4.94 63.6 20.11
0.5m 9.1 7.5 24.50 12.00 4.92 64.7 19.11
25 Sep 2024 Approved Notes:

Before artificial opening

Water temperature probe working but did not store on the meter so no water temp measurements but salinity/EC measurements should still be accurate
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 44.0 7.3 0.00 12.70 3.16 34.1 21.14
1.0m 44.0 7.5 0.00 30.70 3.07 36.1 47.06
23 Sep 2024 Approved Notes:

Water temperature probe working but did not store on the meter so no water temp measurements but salinity/EC measurements should still be accurate
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.7 7.4 0.00 20.40 5.02 57.6 32.55
1.0m 1.7 7.8 0.00 30.90 5.03 58.3 47.42
20 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.0 7.6 13.50 20.00 7.57 82.8 31.90
1.0m 1.0 7.7 17.20 32.00 1.15 14.5 47.58
16 Sep 2024 Approved Notes:

Lots of seaweed washed into the estuary. DO at 0.8m is 2.25mg/L,
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.0 7.5 11.80 20.20 7.05 72.8 32.36
1.0m 1.0 7.3 16.30 32.50 0.60 7.3 49.53
9 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 7.4 13.30 20.70 6.70 72.6 33.02
0.9m 27.0 7.3 14.40 32.80 1.64 19.6 50.04
3 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 36.7 7.3 9.90 28.50 7.06 73.8 44.24
1.0m 36.7 8.0 10.70 33.10 6.45 70.5 50.63
30 Aug 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.2 7.8 15.40 28.40 7.46 90.4 43.89
1.0m 8.2 7.7 13.60 35.40 2.56 31.3 53.61
8 Aug 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 45.8 7.8 11.30 2.90 7.54 69.7 5.27
0.7m 45.8 7.1 11.40 27.40 1.24 13.4 42.68
30 Apr 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.4 8.0 12.80 3.90 7.92 75.4 7.03
0.7m 9.4 8.0 13.90 17.60 1.82 19.3 28.38
27 Mar 2024 Approved Notes:

Lots of algae in the water which could explain elevated DO levels.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.7 19.60 27.70 9.38 119.0 42.93
0.3m 17.7 19.60 27.90 9.39 119.3 43.21
8 Feb 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.4 8.2 20.00 19.40 4.16 50.6 31.06
0.5m 7.4 8.2 20.30 20.40 4.27 52.6 32.59
16 Jan 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.3 21.90 2.30 5.78 66.8 4.38
0.5m 14.3 21.80 2.40 4.87 56.2 4.53
18 Dec 2023 Approved Notes:

pH giving unusually high readings, needs to be recalibrated
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.7 20.90 7.50 7.59 89.1 12.97
0.5m 8.7 22.40 12.00 6.49 80.4 20.05
16 Nov 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.4 7.6 17.80 16.00 5.93 68.5 26.01
0.6m 10.4 6.8 18.70 33.20 0.33 4.3 50.51
31 Aug 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 64.0 7.8 11.40 2.30 7.18 66.5 4.27
0.5m 64.0 7.2 13.90 19.10 0.47 5.1 30.61
11 Jul 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.7 7.5 12.10 15.70 8.90 90.4 25.58
0.7m 13.7 8.1 13.10 36.30 5.69 67.1 5.69
14 Jun 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.1 7.1 10.80 13.80 6.36 62.8 22.72
1.0m 17.1 7.1 14.20 35.30 0.65 7.9 53.44
30 May 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 112.0 7.0 14.00 2.70 6.34 62.4 4.97
0.7m 112.0 6.7 14.40 33.10 0.69 8.2 50.37
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